Delphi語言學習1-Program和Unit(2)

4.Unit間接引用

program Prog;
uses Unit2;
const a = b;
//...
unit Unit2;
interface
uses Unit1;
const b = c;
//...
unit Unit1;
interface
const c = 1;
//...

5.Unit的嵌套引用

unit Unit1;
interface
uses Unit2;
// ...
unit Unit2;
interface
uses Unit1;
// ...